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Porsche is planning to serve up a party platter of tasty treats this year to commemorate the 50th birthday of the 911.

The German sportscar maker has confirmed an original 1967 version of its popular model will embark on a global postcard tour as part of the celebrations.

But there are even more presents to unwrap, including the unveiling of the company's latest track-focused GT3 at the Geneva motor show next month and the fastest 911 ever built, the 991-series Turbo, which is scheduled to premiere in the latter part of the year.

Porsche has yet to confirm details of the 991-series GT3, but it is understood it will be offered with both the conventional seven-speed manual gearbox and, for the first time, a PDK dual-clutch transmission.

Power output from its highly tuned, 3.8-litre naturally-aspirated flat six is expected to eclipse that of the 331kW produced by the superseded GT3 RS. The lighter underpinnings of the latest-gen 911 should see the PDK-equipped GT3 accelerate from 0-100kmh in less than four seconds.

The 911 Turbo will be even faster. As the first variant of the new seventh-generation 911 to be powered by a twin-turbo flat six, it is expected to produce more than 400kW and have as much as 750Nm of torque on tap, which, with it's all-wheel drive transmission, will probably elevate it into the stratospheric league of hypercars such as the Bugatti Veyron, which can accelerate to 100kmh in less than three seconds.

Apart from the GT3 and Turbo models, there is also expected to be a limited-edition 50th anniversary model of the 911 this year.

Porsche released a highly equipped 911 Carrera to celebrate the 911's 40th anniversary, and it is likely to follow the same formula for the 50th celebration model.

It is expected to be built in extremely limited numbers; only 1963 units of the 40th anniversary were built as a nod to the 911's birth year, all of which were painted in an exclusive GT metallic silver previously only available on the Carrera GT supercar.

The cars also featured lowered suspension, a sports exhaust system, increased power and a special build plaque in the cockpit.